York YK Style H Operation Manual page 126

Table 127: Navigation
Button
Home
Diagnostics
System Backup
System Restore
126
Description
Returns user to Home Screen.
Moves to the subscreen allowing limited diagnostic capability while operating.
Jumps to the System Backup screen to save the chiller system files.
Jumps to the System Restore screen to write the save system files to the microboard.
Model YK Style H Centrifugal Liquid Chillers with OptiView Control Center